Period	Persons
1967-01-01	334995
1972-01-01	346600
1977-01-01	361358
1982-01-01	365525
1987-01-01	370750
1992-01-01	392175
1997-01-01	419450
2002-01-01	446175
2007-01-01	479993
2012-01-01	530946